<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Row Editing in DataGrid - jQuery EasyUI Demo</title>
    <link rel="stylesheet" type="text/css"
          href="../../themes/default/easyui.css">
    <link rel="stylesheet" type="text/css" href="../../themes/icon.css">
    <link rel="stylesheet" type="text/css" href="../demo.css">
    <script type="text/javascript" src="../../jquery.min.js"></script>
    <script type="text/javascript" src="../../jquery.easyui.min.js"></script>
</head>
<body>
<h2>Row Editing in DataGrid</h2>
<p>Click the row to start editing.</p>
<div style="margin:20px 0;"></div>

<table id="dg" class="easyui-datagrid" title="Row Editing in DataGrid"
       style="width:700px;height:auto"
       data-options="
				iconCls: 'icon-edit',
				singleSelect: true,
				toolbar: '#tb',
				url: 'datagrid_data1.json',
				method: 'get',
				onClickCell: onClickCell,
				onEndEdit: onEndEdit
			">
    <thead>
    <tr>
        <th data-options="field:'itemid',width:80">Item ID</th>
        <th data-options="field:'productid',width:100,
						formatter:function(value,row){
							return row.productname;
						},
						editor:{
							type:'combobox',
							options:{
								valueField:'productid',
								textField:'productname',
								method:'get',
								url:'products.json',
								required:true
							}
						}">Product
        </th>
        <th data-options="field:'listprice',width:80,align:'right',editor:{type:'numberbox',options:{precision:2}}">
            List Price
        </th>
        <th data-options="field:'unitcost',width:80,align:'right',editor:{type:'numberbox',options:{precision:2}}">
            Unit Cost
        </th>
        <th data-options="field:'attr1',width:250,editor:'textbox'">Attribute
        </th>
        <th data-options="field:'status',width:60,align:'center',editor:{type:'checkbox',options:{on:'P',off:''}}">
            Status
        </th>
    </tr>
    </thead>
</table>

<div id="tb" style="height:auto">
    <a href="javascript:void(0)" class="easyui-linkbutton"
       data-options="iconCls:'icon-add',plain:true"
       onclick="append()">Append</a>
    <a href="javascript:void(0)" class="easyui-linkbutton"
       data-options="iconCls:'icon-remove',plain:true" onclick="removeit()">Remove</a>
    <a href="javascript:void(0)" class="easyui-linkbutton"
       data-options="iconCls:'icon-save',plain:true"
       onclick="acceptit()">Accept</a>
    <a href="javascript:void(0)" class="easyui-linkbutton"
       data-options="iconCls:'icon-undo',plain:true"
       onclick="reject()">Reject</a>
    <a href="javascript:void(0)" class="easyui-linkbutton"
       data-options="iconCls:'icon-search',plain:true" onclick="getChanges()">GetChanges</a>
</div>

<script type="text/javascript">
    var editIndex = undefined;

    function endEditing() {
        if (editIndex == undefined) {
            return true
        }
        if ($('#dg').datagrid('validateRow', editIndex)) {
            $('#dg').datagrid('endEdit', editIndex);
            editIndex = undefined;
            return true;
        } else {
            return false;
        }
    }

    function onClickCell(index, field) {
        if (editIndex != index) {
            if (endEditing()) {
                $('#dg').datagrid('selectRow', index)
                    .datagrid('beginEdit', index);
                var ed = $('#dg').datagrid('getEditor', {
                    index: index,
                    field: field
                });
                if (ed) {
                    ($(ed.target).data('textbox') ? $(ed.target).textbox('textbox') : $(ed.target)).focus();
                }
                editIndex = index;
            } else {
                setTimeout(function () {
                    $('#dg').datagrid('selectRow', editIndex);
                }, 0);
            }
        }
    }

    function onEndEdit(index, row) {
        var ed = $(this).datagrid('getEditor', {
            index: index,
            field: 'productid'
        });
        row.productname = $(ed.target).combobox('getText');
    }

    function append() {
        if (endEditing()) {
            $('#dg').datagrid('appendRow', {status: 'P'});
            editIndex = $('#dg').datagrid('getRows').length - 1;
            $('#dg').datagrid('selectRow', editIndex)
                .datagrid('beginEdit', editIndex);
        }
    }

    function removeit() {
        if (editIndex == undefined) {
            return
        }
        $('#dg').datagrid('cancelEdit', editIndex)
            .datagrid('deleteRow', editIndex);
        editIndex = undefined;
    }

    function acceptit() {
        if (endEditing()) {
            $('#dg').datagrid('acceptChanges');
        }
    }

    function reject() {
        $('#dg').datagrid('rejectChanges');
        editIndex = undefined;
    }

    function getChanges() {
        var rows = $('#dg').datagrid('getChanges');
        alert(rows.length + ' rows are changed!');
    }
</script>
</body>
</html>